    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
    <html xmlns="http://www.w3.org/1999/xhtml">  
    <head>  
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
    <title>购物车</title>  
      
    <link rel="stylesheet" href="css/style.css"/>  
      
    <script type="text/javascript" src="js/demo.js"></script>  
      
    </head>  
    <style type="text/css">
    	    @charset "utf-8";  
    *{margin:0;padding:0;list-style-type:none;}  
    a{color:#666;text-decoration:none;}  
    table{border-collapse:collapse;border-spacing:0;border:0;}  
    body{color:#666;font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}  
    clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}  
    .clearfix{display:inline-table}  
    *html .clearfix{height:1%}  
    .clearfix{display:block}  
    *+html .clearfix{min-height:1%}  
    .fl{float:left;}  
    .fr{float:right;}  
      
    .catbox{width:940px;margin:0 auto;}  
    .catbox table{text-align:center;width:100%;}  
    .catbox table th,.catbox table td{border:1px solid #CADEFF;}  
    .catbox table th{background:#e2f2ff;border-top:3px solid #a7cbff;height:30px;}  
    .catbox table td{padding:10px;color:#444;}  
    .catbox table tbody tr:hover{background:RGB(238,246,255);}  
    .checkbox{width:60px;}  
    .goods{width:300px;}  
    .goods span{width:180px;margin-top:20px;text-align:left;float:left;}  
    .goods img{width:100px;height:80px;margin-right:10px;float:left;}  
    .price{width:130px;}  
    .count{width:90px;}  
    .count .add, .count input, .count .reduce{float:left;margin-right:-1px;position:relative;z-index:0;}  
    .count .add, .count .reduce{height:23px;width:17px;border:1px solid #e5e5e5;background:#f0f0f0;text-align:center;line-height:23px;color:#444;}  
    .count .add:hover, .count .reduce:hover{color:#f50;z-index:3;border-color:#f60;cursor:pointer;}  
    .count input{width:50px;height:15px;line-height:15px;border:1px solid #aaa;color:#343434;text-align:center;padding:4px 0;background-color:#fff;z-index:2;}  
    .subtotal{width:150px;color:red;font-weight:bold;}  
    .operation span:hover,a:hover{cursor:pointer;color:red;text-decoration:underline;}  
      
    .foot{margin-top:10px;color:#666;height:48px;border:1px solid #c8c8c8;background-color:#eaeaea;background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));position:relative;z-index:8;}  
    .foot div, .foot a{line-height:48px;height:48px;}  
    .foot .select-all{width:100px;height:48px;line-height:48px;padding-left:5px;color:#666;}  
    .foot .closing{border-left:1px solid #c8c8c8;width:100px;text-align:center;color:#000;font-weight:bold;background:RGB(238,238,238);cursor:pointer;}  
    .foot .total{margin:0 20px;cursor:pointer;}  
    .foot  #priceTotal, .foot #selectedTotal{color:red;font-family:"Microsoft Yahei";font-weight:bold;}  
    .foot .selected{cursor:pointer;}  
    .foot .selected .arrow{position:relative;top:-3px;margin-left:3px;}  
    .foot .selected .down{position:relative;top:3px;display:none;}  
    .show .selected .down{display:inline;}  
    .show .selected .up{display:none;}  
    .foot .selected:hover .arrow{color:red;}  
    .foot .selected-view{width:935px;border:1px solid #c8c8c8;position:absolute;height:auto;background:#ffffff;z-index:9;bottom:48px;left:-1px;display:none;}  
    .show .selected-view{display:block;}  
    .foot .selected-view div{height:auto;}  
    .foot .selected-view .arrow{font-size:16px;line-height:100%;color:#c8c8c8;position:absolute;right:330px;bottom:-9px;}  
    .foot .selected-view .arrow span{color:#ffffff;position:absolute;left:0px;bottom:1px;}  
      
    #selectedViewList{padding:10px 20px 10px 20px;}  
    #selectedViewList div{display:inline-block;position:relative;width:100px;height:80px;border:1px solid #ccc;margin:10px;float:left;}  
    #selectedViewList div img{width:100px;height:80px;margin-right:10px;float:left;}  
    #selectedViewList div span{display:none;color:#ffffff;font-size:12px;position:absolute;top:0px;right:0px;width:60px;height:18px;line-height:18px;text-align:center;background:#000;cursor:pointer;}  
    #selectedViewList div:hover span{display:block;}  
    </style>
    <body>  
      
    <div class="catbox">  
      
        <table id="cartTable">  
            <thead>  
                <tr>  
                    <th><label><input class="check-all check" type="checkbox"/> 全选</label></th>  
                    <th>商品</th>  
                    <th>单价</th>  
                    <th>数量</th>  
                    <th>小计</th>  
                    <th>操作</th>  
                </tr>  
            </thead>  
            <tbody>  
                <tr>  
                    <td class="checkbox"><input class="check-one check" type="checkbox"/></td>  
                    <td class="goods"><img src="images/1.jpg" alt=""/><span>Casio/卡西欧 EX-TR350</span></td>  
                    <td class="price">5999.88</td>  
                    <td class="count"><span class="reduce"></span><input class="count-input" type="text" value="1"/><span class="add">+</span></td>  
                    <td class="subtotal">5999.88</td>  
                    <td class="operation"><span class="delete">删除</span></td>  
                </tr>  
                <tr>  
                    <td class="checkbox"><input class="check-one check" type="checkbox"/></td>  
                    <td class="goods"><img src="images/2.jpg" alt=""/><span>Canon/佳能 PowerShot SX50 HS</span></td>  
                    <td class="price">3888.50</td>  
                    <td class="count"><span class="reduce"></span><input class="count-input" type="text" value="1"/><span class="add">+</span></td>  
                    <td class="subtotal">3888.50</td>  
                    <td class="operation"><span class="delete">删除</span></td>  
                </tr>  
                <tr>  
                    <td class="checkbox"><input class="check-one check" type="checkbox"/></td>  
                    <td class="goods"><img src="images/3.jpg" alt=""/><span>Sony/索尼 DSC-WX300</span></td>  
                    <td class="price">1428.50</td>  
                    <td class="count"><span class="reduce"></span><input class="count-input" type="text" value="1"/><span class="add">+</span></td>  
                    <td class="subtotal">1428.50</td>  
                    <td class="operation"><span class="delete">删除</span></td>  
                </tr>  
                <tr>  
                    <td class="checkbox"><input class="check-one check" type="checkbox"/></td>  
                    <td class="goods"><img src="images/4.jpg" alt=""/><span>Fujifilm/富士 instax mini 25</span></td>  
                    <td class="price">640.60</td>  
                    <td class="count"><span class="reduce"></span><input class="count-input" type="text" value="1"/><span class="add">+</span></td>  
                    <td class="subtotal">640.60</td>  
                    <td class="operation"><span class="delete">删除</span></td>  
                </tr>  
            </tbody>  
        </table>  
          
        <div class="foot" id="foot">  
            <label class="fl select-all"><input type="checkbox" class="check-all check"/> 全选</label>  
            <a class="fl delete" id="deleteAll" href="javascript:;">删除</a>  
            <div class="fr closing">结 算</div>  
            <div class="fr total">合计：￥<span id="priceTotal">0.00</span></div>  
            <div class="fr selected" id="selected">已选商品<span id="selectedTotal">0</span>件<span class="arrow up">︽</span><span class="arrow down">︾</span></div>  
            <div class="selected-view">  
                <div id="selectedViewList" class="clearfix">  
                    <div><img src="images/1.jpg"><span>取消选择</span></div>  
                </div>  
                <span class="arrow">◆<span>◆</span></span>  
            </div>  
        </div>  
      
    </div>  
    <script>
    	    window.onload = function () {  
        if (!document.getElementsByClassName) {  
            document.getElementsByClassName = function (cls) {  
                var ret = [];  
                var els = document.getElementsByTagName('*');  
                for (var i = 0, len = els.length; i < len; i++) {  
      
                    if (els[i].className.indexOf(cls + ' ') >=0 || els[i].className.indexOf(' ' + cls + ' ') >=0 || els[i].className.indexOf(' ' + cls) >=0) {  
                        ret.push(els[i]);  
                    }  
                }  
                return ret;  
            }  
        }  
      
        var table = document.getElementById('cartTable'); // 购物车表格  
        var selectInputs = document.getElementsByClassName('check'); // 所有勾选框  
        var checkAllInputs = document.getElementsByClassName('check-all') // 全选框  
        var tr = table.children[1].rows; //行  
        var selectedTotal = document.getElementById('selectedTotal'); //已选商品数目容器  
        var priceTotal = document.getElementById('priceTotal'); //总计  
        var deleteAll = document.getElementById('deleteAll'); // 删除全部按钮  
        var selectedViewList = document.getElementById('selectedViewList'); //浮层已选商品列表容器  
        var selected = document.getElementById('selected'); //已选商品  
        var foot = document.getElementById('foot');  
      
        // 更新总数和总价格，已选浮层  
        function getTotal() {  
            var seleted = 0;  
            var price = 0;  
            var HTMLstr = '';  
            for (var i = 0, len = tr.length; i < len; i++) {  
                if (tr[i].getElementsByTagName('input')[0].checked) {  
                    tr[i].className = 'on';  
                    seleted += parseInt(tr[i].getElementsByTagName('input')[1].value);  
                    price += parseFloat(tr[i].cells[4].innerHTML);  
                    HTMLstr += '<div><img src="' + tr[i].getElementsByTagName('img')[0].src + '"><span class="del" index="' + i + '">取消选择</span></div>'  
                }  
                else {  
                    tr[i].className = '';  
                }  
            }  
          
            selectedTotal.innerHTML = seleted;  
            priceTotal.innerHTML = price.toFixed(2);  
            selectedViewList.innerHTML = HTMLstr;  
          
            if (seleted == 0) {  
                foot.className = 'foot';  
            }  
        }  
      
        // 计算单行价格  
        function getSubtotal(tr) {  
            var cells = tr.cells;  
            var price = cells[2]; //单价  
            var subtotal = cells[4]; //小计td  
            var countInput = tr.getElementsByTagName('input')[1]; //数目input  
            var span = tr.getElementsByTagName('span')[1]; //-号  
            //写入HTML  
            subtotal.innerHTML = (parseInt(countInput.value) * parseFloat(price.innerHTML)).toFixed(2);  
            //如果数目只有一个，把-号去掉  
            if (countInput.value == 1) {  
                span.innerHTML = '';  
            }else{  
                span.innerHTML = '-';  
            }  
        }  
      
        // 点击选择框  
        for(var i = 0; i < selectInputs.length; i++ ){  
            selectInputs[i].onclick = function () {  
                if (this.className.indexOf('check-all') >= 0) { //如果是全选，则吧所有的选择框选中  
                    for (var j = 0; j < selectInputs.length; j++) {  
                        selectInputs[j].checked = this.checked;  
                    }  
                }  
                if (!this.checked) { //只要有一个未勾选，则取消全选框的选中状态  
                    for (var i = 0; i < checkAllInputs.length; i++) {  
                        checkAllInputs[i].checked = false;  
                    }  
                }  
                getTotal();//选完更新总计  
            }  
        }  
      
        // 显示已选商品弹层  
        selected.onclick = function () {  
            if (selectedTotal.innerHTML != 0) {  
                foot.className = (foot.className == 'foot' ? 'foot show' : 'foot');  
            }  
        }  
      
        //已选商品弹层中的取消选择按钮  
        selectedViewList.onclick = function (e) {  
            var e = e || window.event;  
            var el = e.srcElement;  
            if (el.className=='del') {  
                var input =  tr[el.getAttribute('index')].getElementsByTagName('input')[0]  
                input.checked = false;  
                input.onclick();  
            }  
        }  
      
        //为每行元素添加事件  
        for (var i = 0; i < tr.length; i++) {  
            //将点击事件绑定到tr元素  
            tr[i].onclick = function (e) {  
                var e = e || window.event;  
                var el = e.target || e.srcElement; //通过事件对象的target属性获取触发元素  
                var cls = el.className; //触发元素的class  
                var countInout = this.getElementsByTagName('input')[1]; // 数目input  
                var value = parseInt(countInout.value); //数目  
                //通过判断触发元素的class确定用户点击了哪个元素  
                switch (cls) {  
                    case 'add': //点击了加号  
                        countInout.value = value + 1;  
                        getSubtotal(this);  
                        break;  
                    case 'reduce': //点击了减号  
                        if (value > 1) {  
                            countInout.value = value - 1;  
                            getSubtotal(this);  
                        }  
                        break;  
                    case 'delete': //点击了删除  
                        var conf = confirm('确定删除此商品吗？');  
                        if (conf) {  
                            this.parentNode.removeChild(this);  
                        }  
                        break;  
                }  
                getTotal();  
            }  
            // 给数目输入框绑定keyup事件  
            tr[i].getElementsByTagName('input')[1].onkeyup = function () {  
                var val = parseInt(this.value);  
                if (isNaN(val) || val <= 0) {  
                    val = 1;  
                }  
                if (this.value != val) {  
                    this.value = val;  
                }  
                getSubtotal(this.parentNode.parentNode); //更新小计  
                getTotal(); //更新总数  
            }  
        }  
      
        // 点击全部删除  
        deleteAll.onclick = function () {  
            if (selectedTotal.innerHTML != 0) {  
                var con = confirm('确定删除所选商品吗？'); //弹出确认框  
                if (con) {  
                    for (var i = 0; i < tr.length; i++) {  
                        // 如果被选中，就删除相应的行  
                        if (tr[i].getElementsByTagName('input')[0].checked) {  
                            tr[i].parentNode.removeChild(tr[i]); // 删除相应节点  
                            i--; //回退下标位置  
                        }  
                    }  
                }  
            } else {  
                alert('请选择商品！');  
            }  
            getTotal(); //更新总数  
        }  
      
        // 默认全选  
        checkAllInputs[0].checked = true;  
        checkAllInputs[0].onclick();  
    }  
    </script>
      
    </body>  
    </html>  